Chemistry · Analytical Chemistry
Arrange the following steps in the determination of protein content using the Kjeldahl Method in correct sequence: A. Digestion of the sample with concentrated H2SO4 to form ammonium sulphate B. Treatment of the acid digest with excess concentrated NaOH to release ammonia gas C. Distillation of the liberated ammonia gas D. Collection of condensed ammonia in a receiving flask containing standardized acid E. Titration of the remaining unreacted acid to quantify total nitrogen
- 1C, B, A, E, D
- 2A, C, B, D, E
- 3B, A, C, E, D
- 4A, B, C, D, E✓
Correct answer
A, B, C, D, E
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